The generation of symmetrical space phasors compared with the selective harmonic elimination method of multilevel converters

Author

Mehlmann, G. ; Herold, G.

Author_Institution

Inst. of Electr. Power Syst., Univ. of Erlangen-Nuremberg, Erlangen, Germany

fYear

2010

Firstpage

125

Lastpage

130

Abstract

The basic concept of a multilevel converter is to synthesize a staircase voltage wave-form by the use of several lower voltage DC sources. Capacitors, batteries, fuel cells and photovoltaic modules can be used as DC sources. A multilevel converter has several advantages, like a high voltage quality and low electromagnetic compatibility problems. Two different modulation schemes for multilevel inverters will be analyzed and compared in this paper: The well known selective harmonic elimination method and the generation of highly pulsating space phasors.

Keywords

electromagnetic compatibility; harmonics suppression; power convertors; DC voltage source; electromagnetic compatibility; multilevel converter; selective harmonic elimination; staircase voltage waveform; symmetrical space phasor generation; DC generators; Equations; Frequency modulation; Harmonic distortion; Photovoltaic systems; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Quality and Supply Reliability Conference (PQ), 2010

Conference_Location

Kuressaare

Print_ISBN

978-1-4244-6978-9

Type

conf

DOI

10.1109/PQ.2010.5550007

Filename

5550007